Cell Division
During which process does one cell split into two identical cells?
Mitosis
For each genotype below, indicate whether it is heterozygous (He) or homozygous (Ho)
AA, Aa, aa
Ho, He, Ho
What is the shape of a DNA strand?
Twisted Double Helix
What type of evidence for evolution is found in rock layers, showing changes in species over time?
Fossil Record
What is the main purpose of cell division?
To produce new cells for growth and repair
What is a phenotype?
Physical Trait
Which base is NOT in DNA?
Uracil (U)
Which type of evidence shows that all vertebrate embryos share similar features early in development?
Embryological Evidence
What happens during the growth phase of a cell?
The cell gets bigger and prepares to divide
For each of the genotypes below determine what phenotypes would be possible.
Brown hair is dominant to blonde
BB ___________
Bb ____________
bb ____________
Brown
Brown
Blonde
What does DNA stand for?
Deoxyribonucleic Acid
Human arms and whale flippers are examples of what evolutionary relationship?
Homologous Structures
Which part of the cell cycle involves copying the DNA?
Interphase
A TT (tall) plant is crossed with a tt (short plant).
What percentage of the offspring will be tall?
100%
What does RNA stand for?
Ribonucleic Acid
The presence of a tailbone in humans is an example of what type of structure?
Vestigial Structure
Why is it important for cells to divide correctly?
To make sure new cells have the right amount of DNA
A roan cow is crossed with white cow.
How many offspring will be roan?
2
Transcribe the DNA to RNA
AAC GAT TCG GGA
UUG CUA AGC CCA
Which famous scientist went to the Galapagos Islands and studied Finches?
Charles Darwin